Mathematics
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The Geometry of the Circle
- Angles at circumference & centre
An interactive investigation to determine the relationship between an inscribed angle and a central angle (applet).
- Angles at the Circle
Excellent interactive applet; easy to use.
- Angles on same arc
A single interactive investigation to visualise the relationship between inscribed angles, an angle in the alternate segment and opposite angles in a cyclic quadrilateral (applet).
- Angles on same arc (flashlight application)
An interactive investigation using the principle of a flashlight to visualise the relationship between two arcs given that the inscribed angles are equal (applet).
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